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Control method and device for delaying frosting of air conditioner and air conditioner

A control method and air conditioner technology, applied in the field of devices and air conditioners, and the control method for delaying frosting of air conditioners, can solve the problems of poor comfort and room temperature drop, and achieve the effect of delaying frosting effect

Active Publication Date: 2022-03-08
NINGBO AUX ELECTRIC +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When defrosting, the air conditioner will generally stop heating, causing the room temperature to drop, making the comfort during the heating process poor

Method used

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  • Control method and device for delaying frosting of air conditioner and air conditioner
  • Control method and device for delaying frosting of air conditioner and air conditioner
  • Control method and device for delaying frosting of air conditioner and air conditioner

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Embodiment Construction

[0058] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0059] figure 1 Shown is a schematic flowchart of a control method for delaying frosting of an air conditioner according to an embodiment of the present invention, including the following steps S100-S300.

[0060] In step S100, the temperature of the external coil of the air conditioner is continuously sampled. During the heat exchange process between the outdoor heat exchanger (evaporator) and the outdoor air, since the temperature of the outdoor heat exchanger is low (often around 0°C), and the air humidity on the outdoor side is high, it passes through the low temperature heat exchanger After heat exchange, part of the water in the ambient air will be condensed and left in the outdoor heat exchanger. Due to the low surface temperature...

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Abstract

The invention provides a control method, device and air conditioner for delaying frosting of an air conditioner, relating to the technical field of air conditioners, including continuous sampling of the temperature of the outer coil of the air conditioner; according to the change of the temperature of the outer coil of the air conditioner with time , judging whether the delayed frosting condition is satisfied; when the delayed frosting condition is satisfied, the heating element is controlled to heat the heat exchanger, and the delayed frosting operation is performed. The present invention judges the change trend by obtaining the first derivative of the temperature of the external coil, finds the inflection point when the frost layer enters the deterioration period according to the judgment conditions, and starts the delayed frosting operation. Eliminate the frost layer and condensed water through the heating element, slow down the frosting time of the air conditioner, so as to prolong the time for the air conditioner to enter the automatic frost mode, and ensure the heating effect and the comfort of the air conditioner.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a control method and device for delaying frosting of an air conditioner and an air conditioner. Background technique [0002] With the development of air-conditioning technology and the gradual improvement of people's living standards, more and more users will choose to use air-conditioning for heating in winter. A very serious problem encountered by existing air conditioners using air as a heat source during heating operation in winter is the problem of frosting on the surface of the evaporator (outdoor heat exchanger). [0003] During the heating process of the air conditioner in winter, the evaporator exchanges heat with the outdoor ambient temperature and brings the outdoor heat into the room, thereby achieving the room heating effect. When the surface temperature of the evaporator is lower than the dew point temperature of the surrounding air, condensation will occ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/42F24F11/64F24F11/65F24F11/70F24F11/88F24F13/22F24F140/20
CPCF24F11/42F24F11/64F24F11/65F24F11/70F24F11/88F24F13/222F24F2140/20
Inventor 谢任强秦宪
Owner NINGBO AUX ELECTRIC
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